We present a component-based approach for recognizing objects under large pose changes. From a set of training images of a given object we extract a large number of components which are clustered based on the similarity of their image features and their locations within the object image. The cluster centers build an initial set of component templates from which we select a subset for the final ...

The authors have developed a performance test, CPTOP (Cognitive Performance Test of Productivity), which combines 11 basic task testss to evaluate intelligent abilities of office workers in order to quantitatively and objectively evaluate their productivity by controlling office environment. However, in the previous experiment, it was found that the results of CPTOP contain in-fluences of learn...

Doing computer work with an incorrect posture can lead to musculoskeletal disorders. Training workers with ergonomics advice decreases these risks. In this paper a posture recognition system, CAPRIO, is proposed, using pressure sensors and context information to generate tailored ergonomics advice. Using pressure sensors alone leads to too many false positives in detecting wrong postures. Using...

Location awareness is a crucial part of the context-awareness mechanism for ubicomputing. This paper explores how usefull is the location awareness history for an office based low-cost context-awareness environment. Capturing location awareness data into a relational database is simple and feasible in office environment. We use extended SQL to access the location awareness history database to p...

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This paper addresses the challenge of developing robots that map and navigate autonomously in real world, dynamic environments throughout the robot’s entire lifetime — the problem of lifelong navigation. Static mapping algorithms can produce highly accurate maps, but have found few applications in real environments that are in constant flux. Environments change in many ways: both rapidly and gr...

In this paper, we describe a system which models a set of concurrent processes that are encountered in a typical office environment, using a body of explicitly sequenced production rules. The system employs an interval-based temporal network for storing historical information. A text planning module traverses this network to search for events which need to be mentioned in a coherent report desc...

In this paper we describe an augmented reality tool for collaborative work called the MagicBoard. The MagicBoard is based on a ordinary white board which has been enhanced by a video projector and a steerable camera. A supervisor coordinates the cooperation of several modules including gesture recognition, nger tracking and white board scanning for digitalisation of the content. The gesture rec...

Ahtract We describe an experimental multimedia information system for an office environment which is being developed in the University of Toronto. Multimedia messages are composed of text, image, voice and attribute information. We discuss issues related to internal representation, presentation and cornmunication with the outside world, content addressahility in the various data types, user int...